We have a lovely Japanese area in our garden with some beautiful moss growing over the rocks around the small pond and water feature. unfortunately over the last few days we have noticed some bare patches on the rocks where the moss appears to have been ripped of and discarded in clumps below the rocks. our garden is enclosed so no way for a dog or cat etc to get in. What could be attacking the moss?? We would be grateful for any ideas. My email is Elaine.m.benning@outlook.com. Many thanks
There are lots of possibilities. My main suspects would be birds like crows flipping the moss over looking for insects or worms. It could also be skunks although your fence may keep them out) or squirrels. There are repellents for the rodents but make sure that the one you choose is safe near water especially if there are fish. Perhaps enclosing the area with bird netting for the winter would help.